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(ModeL) G. M. HATTERSLEY.

UPRIGHT PIANO. No. 320,556. I Patented June 23, 1885.

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CHARLES H. HATTEBSLEY, OF TREN'ION, NE\V JERSEY.

UPRIGHT PlANO.

EPECIFICATION forming part of Letters Patent No. 320,556, dated June 23,1885.

Application filed January .10, 1885. (Model) T0 at whmn it may 00ncern:

Be it known that I, CHARLES M. Hrrrnns- LEY, of the city of Trenton,county of Mercer, and State of New Jersey, have invented a certain newand useful Improvement in Upright Pianos, of which the following is aspecification, reference being bad to the accompanying drawings, inwhich drawings similar parts are indicated by similar letters ofreference.

It has been supposed heretofore that the strings of a piano take theirtone from the wood through the bearings, and frames as heretoforeconstructed have been in some instances provided with agraffes,affordingabearing for the strings, and passing down through apertures in theframe, or in some pianos the frame has been made in two pieces,andastrip of wood interposed between said piecesresting upon tle woodenwrest-plank and provided with a metallic hearing at the top. I havediscovered that the strings do not take their tone from the bearing, butfrom the pressurebar, which bar communicates by its screws with thewooden wrestplank. This discovery has enabled me to use a very simple,inexpensive, and efficient bearing, dispensing with agraffes, which areliable to sing or whistle, and en abling me to use a solid plate, thusincreasing greatly the strength of such plate, and at the same time I amenabled to have the strings take their tone from the wooden wrest-plank.

My invention is shown in Figures 1 and 2 of the drawings.

' Figure 1 is a top view of a part of an upright piano, showing a partof the frame, and also the strings, pressure-bar, and bridge.

Fig. 2 is a longitudinal sectional View of Fig. 1.

is the iron plate. B B are the screws which C C are the In Fig. 1, Apressure bar. hold the pressure-bar in place.

tuningpins. D D are the steel strings. E is the bridge, and F is thebearing-bar. In

Fig. 2 these parts are shown in sections, and the wrest-plank Gunderneath the plate A is also shown in section. The screws B, whichsupport the pressure-bar B, are also shown passing through the plate Aand into the wood of the wrest-plank G. The plate A is made of metal andis solid, and extends over the wrest-plank G, and is provided with ashoulder, A, immediately in front of the bearing-bar. This shoulder ismade in one with the plate, and affords a seat for thebearing-bar F.This bearing-bar I preferably make in one continuous round rod; but itis not essential that it should be continuous, as if divided intosections it will perform its office as well. The shoulder A, I alsoprefer to make continuous; but it is not essential to my invention thatit should be continuous, as interruptions of it, provided sufficient beleft to form a seat for the bearing-bar, would not alter its nature norimpair its function.

\Vhat I claim as my invention is- The continuous metal plate A, providedwith the shoulder A, made in one therewith, in combination with thebearing-bar F, the pressure-bar B, held by screws B, passing throughopenings in the plate directly into the wrest-plank G, substantially asshown and described.

C. M. HATTERSLEY.

\Vitnesses:

S. B. HUToHINsoN, A. BUCHANAN.

B is the 0

